Isaac davis



ISAAC DAVIS, OF BROOKLYN'EW YORK,

Letters Patentllfo. 79,055, dated June 23, 1868.

IMPROVEMENT 1N coMMncTIoMs ron SOFT-METAL Press.

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Be it known that I, ISAAC DAVIS,.of Brooklyn, in the county ofIiings,and State of New York, have invented a. new and useful Improvement inConnecting Lead Pipes; and I do hereby declarethat the following is a. full, clear, and exact description thereof, which will enable othersskilledin the art to'make and use the.

same, reference being had to the-accompanying drawiugs,`forming' a partof this specification, in which- -Figure 1 represents a 'sideview,partly in 4-section, of` two'ends of lead pipe connected by myimproved method.

Figure =2v is a plan view of ,the same.

ISimilar letters of reference indicate corresponding parts.

'Ihisinvention'relates'to a new method of connecting the ends of leadpipes without soldering, so that they can be easily secured together,and easily taken apart. Heretofore, lead pipes could only be connectedwith each otherby soldering, which is notV only a tediousand annoyingprocess, but which is also imperfect, as it prevents the pipe from beingeasily takento pieces, if desired.

The object of my invention is to provide a device, by means of which theends of two pieces oflead pipe can be instantaneously conneeted'w'ithoutloss of time, and without the use of solder.

i The invention consists in the use of two screw-caps, which are fittedaround the two ends 'of pipe to be connected, the ends ofthe pipe beingthen attened out, so that flanges are formed around the ends. A washerbeing interposed betwee-n the two endsof pipe, the two caps are screwedtogether until the washer is firmly clamped between the flanges on thepipes. The pipe-ends are then'firmly connected, a watertight joint beingproduced, and still no solder no-r any other binding-material is used.Whenever desired, the pipescan be taken apart again by unscrewing thecaps.

A'B, in the drawing, represent the ends of two pieces of lead pipe. C Dare two' sleeves, tted loosely aroundthem. On the endof each pipeis'formed a ange, a, by hammering the end down. One of the sleeves orcaps C Dis provided with male, the other with female-screw threads,as-is clearly shown in fig. 1.

E is a washer, madeof leather or other suit-able material. VThe same isinterposed between the ends of the i pipes A B, and then the caps C Dare screwed together, they bearing against 'the anges a, and compressingthe washer between the same, as is clearly indicated in fig: l.

I am aware that screw-caps and bolts have been used tocon1icct'hardmetalpipes; but, though a mere change of material would notchange the character of such device, a change modifying the mode ofapplication, and involving a new process, would be sufficient therefor,even were no peculiarity `presented in the apparatus used); and,therefore, having described rny inventionvWhat I claim as new, anddesire to secure by Letters Patent, is

A lead-pipe connection, consisting ofthe screw-clamps C D, applied overflanges a a, and packing, all substantially as and for the purpose setforth.

ISAAC DAVIS.

Witnesses:

WM. F. McNAMARA, ALEX. F. Renners.

